Carton



Patented Oct. 20, 1936 STATES PATENT OFFICE 1 Claim.

My invention relates to: a carton of the type having a hinged flap andrefers particularly to a carton of heavy paper.

An object of my invention is to provide a carton which is readily foldedfor packing purposes and which is of strong and durable construction.

A further object of my invention is to provide means for retaining thecarton in closed position, maintaining a rigid structure.

A further object of my invention is to provide means for opening orclosing the carton quickly and conveniently.

A further object of my invention is toprovide a carton of this typewhich can be handled roughly without injury to the same.

A further object of my invention is to simplify the construction of thisinvention as much as possible to make the same reasonable in the cost ofmanufacture.

With these and other objects in View, my invention consists in theconstruction, arrangement and combination of the various parts of mydevice, whereby the objects contemplated are attained, as hereinaftermore fully set forth, pointed out in my claim, and illustrated in theaccompanying drawing, in which:

Figure 1 is a plan view of the carton in its open position,

Figure 2 is a sectional view of Figure 1 taken along the lines 22,

Figure 3 is a plan view of the carton in its closed position,

Figure 4 is an enlarged detail view taken along the lines 44 of Figure1, and

Figure 5 is a plan view showing the collapsing feature of the carton.

In its preferred form, the carton is made of heavy carboard or paper,although it will be understood that it can be made of other materials aswell.

I have used the character H] to represent the end walls of the carton,and II, the side walls thereof. Affixed between the walls I l is themember l2 which includes the flanges l3 bent oppositely as shown andattached to the walls II with the staples M.

The upper and lower ends of the partition l2 are looped at I?) along thelength thereof and attached with staples at Hi. The loop l5 receives thewire form ll which is a continuous piece of wire bent into the loops N3of which, in this construction, there are four. These loops extendthrough the openings l9 which are cut out from the paper or cardboardloop I5.

It will now be seen that these loops I8 project slightly above the upperand lower edges of the carton as shown.

The carton also includes the side flaps and the end flaps 2 I. The sideflaps 20 include circular openings 22, and the end flaps include theopenings 23. The end flaps 2| are adapted to overlap the centralpartition I2, but the side flaps 20 fall to the position as indicated bythe dotted lines at 24 when closed and do not overlap. The flaps 20 areindented at 25 to insure a neat closure. The end flaps 2| can beattached to the carton as shown in Figure 2 where they include the Ushaped extremities 26 which receive the integral U shaped extensions 2'!of the end walls In. These members are attached by means of the staples28.

The openings 22 and 23 are so positioned on the flaps that when they areclosed, they will all overlie the loops l8 and receive the same.

For instance, in closing the carton, the side flaps 2B are first foldedinwardly so that the openings 22 receive the respective loops, then theend fiaps 2| are folded inwardly, first one flap with its correspondingopenings receiving the loops, and then the other. This feature isillustrated more clearly in Figures 2 and 4. After this operation, thewire bolt 29 is passed through the upper end of the loop l8, therebyclosing the carton effectively.

The bolt 29 includes the handle portion 30 to facilitate removal andinsertion thereof. After the bolt 29 is once inserted, the naturaltendency of the flat members is to exert resilient force against thebolt so that it will be maintained tightly and in firm engagement sothat the carton can be handled quite roughly without slipping or openingof the flaps.

It will be understood that the section taken on the lines 44 is takenwith the flaps in the closed position.

It will be understood that this construction can be followed using thisparticular flap arrangement on the top only instead of on both bottomand top as shown in the drawing, in case it is desired to use a stiffcarton.

It will be noted from Figure 5 that this type of carton can be readilycollapsed when the fiaps are open to permit flattening of the entirecarton for shipping purposes. This figure shows the beginning of thecollapsing operation, and it will be noted that the hinging effects ofthe partition l2 and the end walls Ill permit of this feature.

It will be noted that when in closed position, the incorporation of theopenings together with the received loops and the locking bolt providesa positive rigid structure which absorbs all strains be opened by onesimple operation. Also the overlapping relation of the flaps provides acomparatively tight closure.

It will be also noted that although the carton is collapsible, thefeature of the partition, etc., provides strength to the structure aswell as the other features mentioned.

It will now be seen that I have provided a carton which is strong anddurable and of very inexpensive construction, and it will also be seenthat this carton can be folded when not in use, and which can be readilyopened or locked.

a carton which can be handled roughly without injury to the carton orits contents and which can be quickly opened or locked.

Some changes may be made in thecons'truction and arrangement of theparts of my invention without departing from the real spirit and purposeof my invention, and it is my intention to cover by my claim anymodified forms of structure or use of mechanical equivalents, which maybe reasonably included within their scope.

I claim as my invention:

A carton comprising parallel side walls and end walls, a partitionparallel to the end walls and hinged to the side walls including bentover edges, an integral wire form including a plurality of loopsreceived within the bent over edges with I said loops projecting abovethe partition, end and It will be seen further that I have provided suchside flaps hinged to end and side walls having openings adapted toreceive said loops when the carton is closed, and a locking boltreceivable through said loops and above said flaps.

v PHILLIP R. SMYTHE.

